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API · /jwt-api

JWT API

healthy 4,765 Subscribers

A fast, fully-local JSON Web Token toolkit: sign a JSON payload into a JWT, verify a token signature together with its exp and nbf claims using a constant-time comparison, and decode a token header and payload without verifying. Supports the HMAC algorithms HS256, HS384 and HS512, automatically adds the iat claim and an exp claim from expires_in. Built on Node crypto and secrets are never logged, so responses are instant, private and always available. Every endpoint accepts input via the query string or the request body. Ideal for authentication, API gateways, session and token tooling, microservices and webhooks.

#jwt #json-web-token #auth #sign #verify #security #dev-tools
api.oanor.com/jwt-api
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Machine-readable spec so AI agents can integrate this API.

/api/jwt-api/openapi.json
/api/jwt-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
76 ms
Server probes · 24h
Subscribers
4,765
active
Total calls
15
last 7 days
status Full status page → · 15 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 6,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 6,000 requests/month, 2 req/s
  • All endpoints: sign, verify, decode (HS256/384/512)
  • Constant-time verify, secrets never logged
  • No credit card
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Basic

€6.00 /month

  • 125,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 125,000 requests/month, 8 req/s
  • Full sign + verify + decode, all HMAC sizes
  • exp/nbf claim validation
  • Commercial use, email support
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Pro

€20.00 /month

  • 850,000 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 850,000 requests/month, 25 req/s
  • All endpoints, priority routing
  • Constant-time compare, no-log guarantee
  • Priority email support
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Mega

€50.00 /month

  • 4,500,000 calls / month
  • 80 requests / second
  • Hard cap (429 above quota, no overage)
  • 4,500,000 requests/month, 80 req/s
  • Full JWT toolkit at scale
  • Highest throughput for gateways & microservices
  • Priority support, commercial use
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Built by

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PremiumApi

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api.oanor.com/encoding-api

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api.oanor.com/bcrypt-api

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api.oanor.com/totp-api

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Look up software vulnerabilities by their CVE identifier and get clean, structured details — title, description, CVSS score, severity and vector, CWE weakness types, affected vendors and products with version ranges, and reference links — plus search every CVE that affects a given vendor or product, and stream the most recently published CVEs. Sourced from the CIRCL CVE Search service over the official CVE Record 5.1 data and returned as tidy JSON through a fast, reliable API. Ideal for vulnerability management and SOC tooling, DevSecOps and SCA pipelines, security dashboards, compliance and asset-risk monitoring.

api.oanor.com/cve-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for JWT API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call JWT API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for JWT API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does JWT API cost?
JWT API has a free tier with 100 calls / month. Paid plans start at €6.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is JWT API GDPR-compliant?
All requests to JWT API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/jwt-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/jwt-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/jwt-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/jwt-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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